Subelj decides to surrender the d4-pawn, an interesting strategy. Black, however, is in no hurry to capture it.
23... h7h6  24. g5e3  24... d5e7 The knight was fine on d5, but Arjun gets ready to attack the d4-pawn quickly, a more direct play that is his characteristic. I'd have played 25. c4d3  25... c6d6 